[@The Angry Goat] It does matter, and I see what you're getting at, but all spears are blades on sticks.  or pointed sticks, before there were blades.  They come from the same idea: take the sharp thing, and make it reach farther.  This doesn't mean that there aren't other sticks with blades too, though.  ^.^;;

Honestly, if you wanna see a gun combo that's interesting, I rather liked Ruby's scythe in RWBY.  She can shoot thiungs, and she can use the force to push herself, or add power to a cut.  Makes much more sense than "it cuts because it vibrates side-to-side".